Windows 7 * End of mainstream support January 13, 2015 & End of extended support January 14, 2020.
* Support for Windows 7 RTM without service packs ended on April 9, 2013. Be sure to install Windows 7 Service Pack 1 today to continue to receive support and updates.
Every Windows product has a lifecycle. The lifecycle begins when a product is released and ends when it’s no longer supported. Knowing key dates in this lifecycle helps you make informed decisions about when to upgrade or make other changes to your software. Here are the rights and limits of the Windows lifecycle.
End of support refers to the date when Microsoft no longer provides automatic fixes, updates, or online technical assistance. This is the time to make sure you have the latest available update or service pack installed. Without Microsoft support, you will no longer receive security updates that can help protect your PC from harmful viruses, spyware, and other malicious software that can steal your personal information.
[*] Mainstream support—Microsoft will offer mainstream support for a minimum of 5 years from the date of a product’s general availability, or for 2 years after the successor product is released, whichever is longer. For example, if you buy a new version of Windows and five years later another version is released, you will still have two years of support left for the previous version.
[*] Extended support—Microsoft will offer extended support for either a minimum of 5 years from the date of a product’s general availability, or for 2 years after the second successor product (two versions later) is released, whichever is longer.